chrome/browser/resources/settings/search_page/search_page.js

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview
   7  * 'cr-settings-search-page' is the settings page containing search settings.
   8  *
   9  * Example:
  10  *
  11  *    <iron-animated-pages>
  12  *      <cr-settings-search-page prefs="{{prefs}}"></cr-settings-search-page>
  13  *      ... other pages ...
  14  *    </iron-animated-pages>
  15  *
  16  * @group Chrome Settings Elements
  17  * @element cr-settings-search-page
  18  */
  19 Polymer({
  20   is: 'cr-settings-search-page',
  21
  22   properties: {
  23     /**
  24      * Route for the page.
  25      */
  26     route: String,
  27
  28     /**
  29      * Whether the page is a subpage.
  30      */
  31     subpage: {
  32       type: Boolean,
  33       value: false,
  34     },
  35
  36     /**
  37      * ID of the page.
  38      */
  39     PAGE_ID: {
  40       type: String,
  41       value: 'search',
  42     },
  43
  44     /**
  45      * Title for the page header and navigation menu.
  46      */
  47     pageTitle: {
  48       type: String,
  49       value: function() { return loadTimeData.getString('searchPageTitle'); },
  50     },
  51
  52     /**
  53      * Name of the 'iron-icon' to be shown in the settings-page-header.
  54      */
  55     icon: {
  56       type: Boolean,
  57       value: 'search',
  58     },
  59
  60     /**
  61      * List of default search engines available.
  62      * @type {?Array<!SearchEngine>}
  63      */
  64     searchEngines: {
  65       type: Array,
  66       value: function() { return []; },
  67     },
  68
  69     inSubpage: {
  70       type: Boolean,
  71       notify: true,
  72     },
  73   },
  74
  75   /** @override */
  76   created: function() {
  77     chrome.searchEnginesPrivate.onSearchEnginesChanged.addListener(
  78         this.updateSearchEngines_.bind(this));
  79     chrome.searchEnginesPrivate.getSearchEngines(
  80         this.updateSearchEngines_.bind(this));
  81   },
  82
  83   /**
  84    * Persists the new default search engine back to Chrome. Called when the
  85    * user selects a new default in the search engines dropdown.
  86    * @private
  87    */
  88   defaultEngineGuidChanged_: function() {
  89     chrome.searchEnginesPrivate.setSelectedSearchEngine(
  90         this.$.searchEnginesMenu.value);
  91   },
  92
  93
  94   /**
  95    * Updates the list of default search engines based on the given |engines|.
  96    * @param {!Array<!SearchEngine>} engines All the search engines.
  97    * @private
  98    */
  99   updateSearchEngines_: function(engines) {
 100     var defaultEngines = [];
 101
 102     engines.forEach(function(engine) {
 103       if (engine.type ==
 104           chrome.searchEnginesPrivate.SearchEngineType.DEFAULT) {
 105         defaultEngines.push(engine);
 106         if (engine.isSelected) {
 107           this.$.searchEnginesMenu.value = engine.guid;
 108         }
 109       }
 110     }, this);
 111
 112     this.searchEngines = defaultEngines;
 113   },
 114
 115   /** @private */
 116   manageSearchEngines_: function() {
 117     this.$.pages.navigateTo('search-engines');
 118   },
 119
 120   /** @private */
 121   handleBack_: function() {
 122     this.$.pages.back();
 123   },
 124 });